对我来说，更新解决了这个问题:

在Ubuntu上:

sudo apt-get update
sudo apt-get upgrade

CentOS:

sudo yum update

在我的例子中，问题是我所有数据库的页面损坏(检查mysql错误日志)。

我用强制恢复InnoDB解决了这个问题。诀窍是编辑/etc/mysql/my.cnf并添加

innodb_force_recovery = 4

略低于

[mysqld]

然后重新启动mysql。 在检查一切工作正常后，再把线移回来。

This error can also occur if you try to change the directory where the database is stored, but imput the wrong directory in the configuration file (like a typo in the second drive as D instead of the accurate D_). Instead of telling you the typo directory does not exist, it will tell you that you lack permission to access it (leading you to try to change the permissions for the typo directory, which it will let you do). So if you get this error while changing directories, double check the configuration file and make sure you don't have a typo.

检查my.cnf中的“bind- address”参数。

否则，尝试使用命令:

mysql -h 127.0.0.1 -P 3306 -u root -p

-h表示主机127.0.0.1，即localhost -P(注意-P为大写)用于3306端口，即MySQL的默认端口

尝试重新启动服务器

sudo /usr/local/mysql/support-files/mysql.server start

如果出现任何错误，请按照以下步骤进行操作

mysqld

您将看到下面的日志。注意MySQL目录中突出显示的部分

mysqld: Can't change dir to '/usr/local/mysql-5.7.14-osx10.11-x86_64/data/' (Errcode: 13 - Permission denied) 2016-10-04T14:09:19.392581Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2016-10-04T14:09:19.392847Z 0 [Warning] Insecure configuration for --secure-file-priv: Current value does not restrict location of generated files. Consider setting it to a valid, non-empty path. 2016-10-04T14:09:19.392921Z 0 [Note] mysqld (mysqld 5.7.14) starting as process 1402 ... 2016-10-04T14:09:19.397569Z 0 [Warning] Can't create test file /usr/local/mysql-5.7.14-osx10.11-x86_64/data/Sudharshan.lower-test 2016-10-04T14:09:19.397597Z 0 [Warning] Can't create test file /usr/local/mysql-5.7.14-osx10.11-x86_64/data/Sudharshan.lower-test 2016-10-04T14:09:19.397712Z 0 [ERROR] failed to set datadir to /usr/local/mysql-5.7.14-osx10.11-x86_64/data/ 2016-10-04T14:09:19.397776Z 0 [ERROR] Aborting 2016-10-04T14:09:19.397795Z 0 [Note] Binlog end 2016-10-04T14:09:19.397925Z 0 [Note] mysqld: Shutdown complete

sudo chown -R _mysql:_mysql /usr/local/mysql-5.7.14-osx10.11-x86_64

注意前面日志中的MySQL文件夹路径/usr/local，在我的例子中，它是MySQL -5.7.14-osx10.11-x86_64，您必须根据您在计算机上获得的日志更新它，以提供对MySQL目录的读访问

sudo /usr/local/mysql/support-files / mysql。服务器启动

启动MySQL 成功!

我也面临着同样的问题，如果你的mysql服务器默认不运行，它会在一些sec后再次停止，所以你再次运行($ sudo service mysql start)命令，你可以改变，如果知道。

对于那个use命令

$ sudo service mysql start   

(如果需要，请输入用户密码，因为我们使用sudo) 然后运行

$ sudo mysql -u root -p          (put user password if required )

现在你有了数据库